<template>
  <div class="site-wrapper site-page--login" :style="bg">
    <div class="site-content__wrapper">
      <div class="site-content">
        <div class="brand-info">
          <h2 class="brand-info__text">{{loginConfig.loginTitle}}</h2>
          <p class="brand-info__intro">{{loginConfig.loginSubTitle}}</p>
        </div>
        <div class="login-main">
          <h3 class="login-title">{{$t("loginFormTitle")}}</h3>
          <el-form :model="dataForm" ref="dataForm" @keyup.enter.native="dataFormSubmit()" status-icon>
            <el-form-item prop="userName" :rules="rules.isRange('20')">
              <el-input v-model="dataForm.userName" :placeholder="$t('commonInput') + $t('loginFormUsernameHolder')"/>
            </el-form-item>
            <el-form-item prop="password" :rules="rules.isNotNull">
              <el-input v-model="dataForm.password" type="password" :placeholder="$t('commonInput') + $t('loginFormPasswordHolder')"/>
            </el-form-item>
            <el-form-item prop="captcha" :rules="rules.isNotNull">
              <el-row :gutter="20">
                <el-col :span="14">
                  <el-input v-model="dataForm.captcha" :placeholder="$t('commonInput') + $t('loginFormCodeHolder')" maxlength=4>
                  </el-input>
                </el-col>
                <el-col :span="10" class="login-captcha">
                  <img :src="captchaPath" @click="getCaptcha()" alt="">
                </el-col>
              </el-row>
            </el-form-item>
            <el-form-item>
              <el-select v-model="lan" placeholder="请选择" style="width: 100%" @change="changeLan">
                <el-option v-for="item in options" :key="item.value" :label="item.label" :value="item.value">
                </el-option>
              </el-select>
            </el-form-item>
            <el-form-item>
              <el-button class="login-btn-submit" :loading="loading" type="primary" @click="dataFormSubmit()">{{$t("loginFormButton")}}</el-button>
            </el-form-item>
          </el-form>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
  import { langStorage, getUUID } from '@/utils'
  export default {
    data () {
      return {
        rules: this.getRules(),
        bg: {},
        loading: false,
        dataForm: {
          userName: '',
          password: '',
          uuid: '',
          captcha: ''
        },
        loginConfig: {},
        captchaPath: '',
        lan: langStorage(),
        options: [{
          value: 'zh',
          label: '简体中文'
        }, {
          value: 'en',
          label: 'English'
        }]
      }
    },
    created () {
      this.getEnv()
      this.getCaptcha()
    },
    methods: {
      // 提交表单
      dataFormSubmit () {
        this.$refs['dataForm'].validate((valid) => {
          if (valid) {
            this.loading = true
            this.$http({
              url: this.$http.adornUrl('/login'),
              method: 'post',
              data: this.$http.adornData({
                'username': this.dataForm.userName,
                'password': this.dataForm.password,
                'uuid': this.dataForm.uuid,
                'captcha': this.dataForm.captcha
              })
            }).then(({data}) => {
              if (data && data.code === 0) {
                this.$cookie.set(window.SITE_CONFIG['tokenKey'], data.data.token)
                this.$cookie.set(window.SITE_CONFIG['tenantKey'], data.data.tenantId || '')
                this.$router.replace({ name: 'home' })
              } else {
                this.getCaptcha()
                this.loading = false
              }
            })
          }
        })
      },
      // 获取验证码
      getCaptcha () {
        this.dataForm.uuid = getUUID()
        this.captchaPath = this.$http.adornUrl(`/captcha.jpg?uuid=${this.dataForm.uuid}`)
      },
      // 获得环境信息
      getEnv () {
        this.httpGet('/getEnv').then(res => {
          this.loginConfig = res.data
          this.bg = {backgroundImage: 'url(' + this.loginConfig.loginPic + ')', backgroundSize: 'cover', backgroundAttachment: 'fixed'}
          if (this.loginConfig.devEnv) {
            // 开发环境 默认值
            this.dataForm.userName = 'admin'
            this.dataForm.password = 'admin'
            this.dataForm.captcha = '1234'
          }
        })
      },
      changeLan (lan) {
        this.$i18n.locale = lan
        langStorage(lan)
        window.location.reload()
      }
    }
  }
</script>

<style lang="scss">
  .site-wrapper.site-page--login {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    /*background-color: rgba(38, 50, 56, 0.6);*/
    overflow: hidden;
    &:before {
      position: fixed;
      top: 0;
      left: 0;
      /*z-index: -1;*/
      width: 100%;
      height: 100%;
      content: "";
      /*background-image: url(~@/assets/img/logo_bg.jpg);*/
      /*background-size: cover;*/
    }
    .site-content__wrapper {
      position: absolute;
      top: 0;
      right: 0;
      bottom: 0;
      left: 0;
      padding: 0;
      margin: 0;
      overflow-x: hidden;
      overflow-y: auto;
      background-color: transparent;
    }
    .site-content {
      min-height: 100%;
      padding: 30px 500px 30px 30px;
    }
    .brand-info {
      margin: 100px 0 0 30px;
      color: #fff;
    }
    .brand-info__text {
      margin:  0 0 22px 0;
      font-size: 48px;
      font-weight: 400;
      text-transform : uppercase;
      color: black;
    }
    .brand-info__intro {
      margin: 10px 0;
      font-size: 16px;
      line-height: 1.58;
      opacity: 0.7;
      color: black;
    }
    .login-main {
      position: absolute;
      top: 0;
      right: 0;
      padding: 120px 30px 180px 90px;
      width: 470px;
      min-height: 100%;
      /*background-color: rgba(255,255,255,0.1);*/
    }
    .login-title {
      font-size: 20px;
    }
    .login-captcha {
      overflow: hidden;
      > img {
        width: 100%;
        cursor: pointer;
      }
    }
    .login-btn-submit {
      width: 100%;
      margin-top: 38px;
    }
  }
</style>
